CN207517461U - A kind of inductor - Google Patents
A kind of inductor Download PDFInfo
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- CN207517461U CN207517461U CN201721466175.7U CN201721466175U CN207517461U CN 207517461 U CN207517461 U CN 207517461U CN 201721466175 U CN201721466175 U CN 201721466175U CN 207517461 U CN207517461 U CN 207517461U
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Abstract
The utility model is related to inductors, and including core assembly and coil block, the coil block includes the first winding coil and the second winding coil, and separator is equipped between first winding coil and the second winding coil；The core assembly includes the first magnetic core, the second magnetic core, the first half magnetic core axis and the second half magnetic core axis, the first half magnetic core is located on the inside of first magnetic core, the second half magnetic core is located on the inside of second magnetic core, the first half magnetic core axis and the second half magnetic core axis are spliced to form magnetic core axis, and first winding coil and second winding coil are wrapped in the magnetic mandrel outer surface parallel.This programme can not only be maximally utilized magnetic core, but also can effectively reduce eddy-current loss, improve conversion efficiency；Inductor structure is simple, low manufacture cost.
Description
Technical field
The utility model is related to inductance field, more specifically to a kind of inductor.
Background technology
In nearly all power circuit, it all be unable to do without magnetic elements (inductance or transformer), it may be said that magnetic element is
One of most important component part of Power Electronic Technique.It is different from other electrical equipments, using being all difficult directly buying to meeting
The inductance or transformer of oneself requirement.Most parameters (inductance value, voltage, electric current, processing energy, frequency, the circle of magnetic element
Than, leakage inductance, loss) it is that can not fix and can be target-seeking without standard to manufacturer.Specifically one magnetic element of design is meeting electrically
Under performance condition, also want considering cost, volume, weight and the degree of difficulty of manufacture, could obtain under certain condition compared with
Satisfied result.
Due to being difficult the magnetic elements for buying standard from the market, the major part of Switching Power Supply design work is exactly magnetic
The design of element.Experienced Switching Power Supply design all knows very well that the success or failure of Switching Power Supply design depend greatly on magnetic
The making correctly designed of property element.High frequency transformer and the intrinsic parasitic parameter of inductance, cause diversiform in circuit ask
Topic, such as high loss, it is necessary to intersect regulation performance between buffering or the high voltage spike of clamp circuit processing, multiple-channel output
Difference, frequency modulation leakage field cause coil it is hot, output or input noise coupling and duty cycle range limitation etc., to Power Management Design at the beginning of just
It must comprehensive consideration.The parameter that correctly design is more than in general circuit design meaning calculates, and should also include structure, technique
And it is prior design with the designs such as heat dissipation.Many troubles of high frequency switch power are due to magnetic element technique, structure
It is unreasonable caused with manufacturing.
With the fast development of science and technology, the consumption of the energy is also increasingly paid attention to, power supply is produced as the intermediate of energy transformation
Product, efficiency also require it is higher and higher, so excellent power supply all used soft switch technique substantially with improve integral transformation effect
Rate.But the resonant inductance of resonant type soft-switch translation circuit is used for due to its special importance, also to its parametric stability
Ask especially tight, so as not to parameter drift and surpassing into Sofe Switch can not realize.Such as the sensibility reciprocal of inductance must be kept under light fully loaded transportation condition
Unanimously to avoid the drift of resonant frequency, require in addition that its anti-saturation ability has to height to realize the mutation ability of load.Institute
With traditional resonant inductance generally using the ferrite magnetic mandrel in 1500-5000 permeability ranges, pass through intermediate mill air gap
Mode is to improve the sensibility reciprocal stability of inductance and anti-saturation ability.It is the making sample situation of conventional resonance inductance below, mainly
By skeleton, magnetic core axis and copper wire winding are put up.This inductance is to need to grind air gap according to line parameter circuit value requirement magnetic core axis to reach one
Fixed inductance value, and air gap generally uses newel mill method to facilitate production and assembly and reduce processing cost.But magnetic core axis air gap
Appearance will generate magnetic line of force dispersion and high-frequency magnetic leakage phenomenon and energy is caused to the copper wire winding of air gap periphery production vortex
Loss, reduces the efficiency of resonant transformation, the heat dissipation of power supply and performance are also by entire lowering.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of inductor.
Technical solution is used by the utility model solves its technical problem：Construct a kind of inductor, which is characterized in that
Including core assembly and coil block, the coil block include the first winding coil and the second winding coil, described first around
Separator is equipped between group coil and the second winding coil；
The core assembly includes the first magnetic core, the second magnetic core, the first half magnetic core axis and the second half magnetic core axis, and described the
Half magnetic core is located on the inside of first magnetic core, and the second half magnetic core is located on the inside of second magnetic core, and described first
Half magnetic core axis and the second half magnetic core axis are spliced to form magnetic core axis, and first winding coil and second winding coil twine parallel
It is wound on the magnetic mandrel outer surface.
Preferably, first winding coil includes the first wire termination and the second wire termination, second winding wire
Circle includes privates end and privates end；
First wire termination is twisted together with the privates end to be formed the input of the coil block and draws
Foot, second wire termination twist together the output pin to form the coil block with the privates end.
Preferably, the separator is pcb board.
Preferably, the separator is equipped with through-hole, and the separator is set in by the through-hole on the magnetic core axis.
Preferably, the diameter of the through-hole is greater than or equal to the diameter of the magnetic core axis, and the magnetic core axis is described in
The center of through-hole.
Preferably, the coiling lead of first winding coil includes the first core and is coated on outside first core
The insulating cement enclosed；First wire termination and the second wire termination are separately positioned on the both ends of first core；
The coiling lead of second winding coil includes the second core and is coated on the exhausted of the second core periphery
Edge glue；The privates end and privates end are separately positioned on the both ends of second core.
Preferably, adhesive tape, the surface wrap adhesive tape of the coil block are wound on the lateral wall of the core assembly.
Preferably, fixing glue is covered on the contact plane that first magnetic core and the second magnetic core combine.
Preferably, first magnetic core and the second magnetic core are connect with what the first half magnetic core axis and the second half magnetic core axis combined
It is symmetrical arranged centered on tactile plane.
Preferably, the first half magnetic core axis is structure as a whole with first magnetic core, the second half magnetic core axis and the institute
The second magnetic core is stated to be structure as a whole.
Implement the inductor of the utility model, have the advantages that：The inductor structure of the utility model is simple, system
Make at low cost, and be no structure, magnetic core window area utilization can be improved, can not only be maximally utilized magnetic core,
And eddy-current loss can be effectively reduced, conversion efficiency is improved, during applied in power supply, the high power density of power supply can be met
It is required that.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the structure diagram of the utility model inductor；
Fig. 2 is the separation schematic diagram of the utility model inductor；
Fig. 3 is the utility model inductor portion structure diagram.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As depicted in figs. 1 and 2, the inductor of the utility model includes core assembly 1 and coil block 2, the coil group
Part 2 includes the first winding coil 21 and the second winding coil 22, between 21 and second winding coil 22 of the first winding coil
Equipped with separator 3.
Wherein, core assembly 1 includes the first magnetic core 11, the second magnetic core 12, the first half magnetic core axis 131 and the second half magnetic cores
Axis 132, the first half magnetic core axis 131 are set on 11 inside of the first magnetic core, and the second half magnetic core axis 132 is set on described the
The inside of two magnetic core 12, the first half magnetic core axis 131 and the second half magnetic core axis 132 are spliced to form magnetic core axis 13, described first around
Group coil 21 and second winding coil 22 are wrapped in 13 outer surface of magnetic core axis parallel.
Optionally, the first half magnetic core axis 131 of the present embodiment are structure as a whole with the first magnetic core 11, the second half magnetic core axis
132 are structure as a whole with the second magnetic core 12.
First magnetic core 11 and the second magnetic core 12 are put down with the contact that the first half magnetic core axis 131 and the second half magnetic core axis 132 combine
It is symmetrical arranged centered on face.As depicted in figs. 1 and 2, first magnetic core 11 of the present embodiment is identical with 12 structure of the second magnetic core, and
Including but not limited to Ferrite Material may be used as core material.
Further, fixing glue is again covered on the contact plane that the first magnetic core 11 and the second magnetic core 12 combine, by solid
Determining glue can be such that the first magnetic core 11 and the second magnetic core 12 is steadily connected and fixed to together.It is to be appreciated that 11 He of the first magnetic core
Acrylate AB glue or HY-303 glue etc. may be used in the fixing glue of second magnetic core 12 connection, and certainly, fixing glue can be with
Using other glues, however it is not limited to which this two kinds of glue, the utility model do not make this specific requirement.For example, using acrylate
AB glue fixed speed is fast, and adhesive strength is high, and price is low, not only contributes to the operation in generating process, also further saves
The cost of inductor.
Covered with fixing glue on the contact plane that the first half magnetic core axis 131 are combined with the second half magnetic core axis 132, pass through fixation
Glue can be such that the first half magnetic core axis 131 and the second half magnetic core axis 132 are connected and fixed to together.It is to be appreciated that fixing glue can be with
Using acrylate AB glue or HY-303 glue etc., certainly, fixing glue can also use other glues, however it is not limited to which this two
Kind glue, the utility model do not make this specific requirement.For example, fast using acrylate AB glue fixed speed, adhesive strength is high, and
Price is low, not only contributes to the operation in generating process, also further saves the cost of inductor.
The magnetic core axis 13 that the first half magnetic core axis 131 and the second half magnetic core axis 132 are spliced to form is cylindrical structure, the first winding
21 and second winding coil 22 of coil can be wrapped in 13 outer surface of magnetic core axis parallel respectively.
Optionally, the coiling lead of the first winding coil 21 includes the first core and is coated on the exhausted of the first core periphery
Edge glue.Further, the first winding coil 21 further includes the first wire termination and the second wire termination, wherein, the first conductor wire end
Portion and the second wire termination are separately positioned on the both ends of the first core.It is to be appreciated that the first wire termination and the second conductor wire end
Portion is respectively two leading foots of the first winding coil 21, the two leading foots can as the first winding coil 21 input pin and
Output pin.
First core is electrically conductive metal core, and in the present embodiment, the first core preferably uses copper wire.
Optionally, the coiling lead of the second winding coil 22 includes the second core and is coated on the exhausted of the core periphery
Edge glue.Further, the second winding coil 22 further includes privates end and privates end, wherein, the third is led
Thread end and privates end are separately positioned on the both ends of second core.It is to be appreciated that privates end and
Four wire terminations are respectively two leading foots of the second winding coil 22, the two leading foots can be as the second winding coil 22
Input pin and output pin.
In the present embodiment, the privates end of the first wire termination of the first winding coil 21 and the second winding coil 22
Twist together the input pin 4 to form coil block 2, the second wire termination and the second winding coil of the first winding coil 21
22 privates end twists together the output pin 5 to form coil block 2.It is to be appreciated that the first winding coil 21
Mode in parallel is used with the second winding coil 22 to complete the function of entire inductor and structural requirement.
In order to make the structure of inductance and energy conversion ability balanced and being optimal, in the present embodiment, the first winding wire
The number of turn of 21 and second winding coil 22 of circle is preferably identical.
Separator 3 is arranged between the first winding coil 21 and the second winding coil 22, by the first winding coil 21 with
The magnetic line of force of second winding coil 22 dispersion out does not generate magnetic force line cutting to cause eddy-current loss to coil around.In this reality
Apply in example, separator 3 can be non-conductive dielectric material make separator 3, by between two winding coils set every
Off member 3 can allow winding coil wall to open air gap, reduce air gap and generate vortex to winding coil and cause to be lost, that is, be effectively reduced
The eddy-current loss of coil block 2 further improves the conversion efficiency of inductance.Optionally, separator 3 includes but not limited to
Pcb board.
As shown in figure 3, the separator 3 of the present embodiment is circular ring structure, center is equipped with through-hole 31, can by the through-hole 31
Separator 3 is made to be set on magnetic core axis 13.
Optionally, the diameter of through-hole 31 is greater than or equal to the diameter of the magnetic core axis 13, and the magnetic core axis 13 passes through institute
State the center of through-hole 31.Wherein, by the way that separator 3 is set between the first winding coil 21 and the second winding coil 22, so that
First winding pitch of the laps and the second winding coil 22 clamp and fix separator 3.
Further, adhesive tape is wound on the lateral wall of core assembly 1, the surface of coil block 2 also winds adhesive tape.It can be with
Understand ground, by winding adhesive tape on the lateral wall of core assembly 1, can be tightly fixed to the first magnetic core 11 and the second magnetic core 12
Together, the first magnetic core 11 and the second magnetic core 12 is caused to detach after further preventing fixing glue degumming.Similarly, in coil block 2
Surface wrap adhesive tape can fetter coil, prevent coil from loosening, and make 2 structure of coil block compacter securely.
To sum up, the inductor of the utility model, using removal skeleton structure, improve magnetic core window area utilization with
Inductor energy ability to transform, and using the form of two winding coils, the intermediate air gap section separator of two winding coils
It separates, the magnetic line of force that dispersion comes out is made not generate magnetic force line cutting to the coil of surrounding to cause eddy-current loss, two winding wires
The function and structural requirement for completing entire inductor using parallel way at the both ends of coil are enclosed, realizes the maximization of magnetic core
It utilizes, reduces energy loss, improve the conversion efficiency of inductor, during applied in power supply, the high power that can also meet power supply is close
Degree requirement, the heat dissipation and overall performance for making power supply get a promotion.
Above example is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, the scope of protection of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims range is done, should all belong to the utility model claims covers model
It encloses.
It should be understood that for those of ordinary skills, can be improved or converted according to the above description,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (10)
1. a kind of inductor, which is characterized in that including core assembly (1) and coil block (2), the coil block (2) includes
First winding coil (21) and the second winding coil (22), between first winding coil (21) and the second winding coil (22)
Equipped with separator (3)；
The core assembly (1) includes the first magnetic core (11), the second magnetic core (12), the first half magnetic core axis (131) and the second half
Magnetic core axis (132), the first half magnetic core axis (131) is on the inside of first magnetic core (11), the second half magnetic core axis
(132) on the inside of second magnetic core (12), the first half magnetic core axis (131) and the second half magnetic core axis (132) splicing structures
Into magnetic core axis (13), first winding coil (21) and second winding coil (22) are wrapped in the magnetic core axis parallel
(13) outer surface.
2. inductor according to claim 1, which is characterized in that first winding coil (21) includes the first conductor wire end
Portion and the second wire termination, second winding coil (22) include privates end and privates end；
First wire termination twists together the input pin to form the coil block (2) with the privates end
(4), second wire termination twists together the output pin to form the coil block (2) with the privates end
(5)。
3. inductor according to claim 1, which is characterized in that the separator (3) is pcb board.
4. inductor according to claim 1, which is characterized in that separator (3) center is equipped with through-hole (31), described
Separator (3) is set in by the through-hole (31) on the magnetic core axis (13).
5. inductor according to claim 4, which is characterized in that the diameter of the through-hole (31) is greater than or equal to the magnetic
The diameter of mandrel (13), and the magnetic core axis (13) is across the center of the through-hole (31).
6. inductor according to claim 2, which is characterized in that the coiling lead of first winding coil (21) includes
First core and the insulating cement for being coated on the first core periphery；First wire termination and the second wire termination difference
It is arranged on the both ends of first core；
The coiling lead of second winding coil (22) includes the second core and is coated on the exhausted of the second core periphery
Edge glue；The privates end and privates end are separately positioned on the both ends of second core.
7. inductor according to claim 1, which is characterized in that adhesive tape is wound on the lateral wall of the core assembly (1),
The surface wrap adhesive tape of the coil block (2).
8. inductor according to claim 1, which is characterized in that first magnetic core (11) and the second magnetic core (12) combine
Contact plane on cover fixing glue.
9. inductor according to claim 1, which is characterized in that first magnetic core (11) and the second magnetic core (12) are with institute
It states and is symmetrical arranged centered on the contact plane that the first half magnetic core axis (131) and the second half magnetic core axis (132) combine.
10. inductor according to claim 1, which is characterized in that the first half magnetic core axis (131) and first magnetic
Core (11) is structure as a whole, and the second half magnetic core axis (132) is structure as a whole with second magnetic core (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466175.7U CN207517461U (en) | 2017-11-03 | 2017-11-03 | A kind of inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466175.7U CN207517461U (en) | 2017-11-03 | 2017-11-03 | A kind of inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517461U true CN207517461U (en) | 2018-06-19 |
Family
ID=62538213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721466175.7U Active CN207517461U (en) | 2017-11-03 | 2017-11-03 | A kind of inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517461U (en) |
-
2017
- 2017-11-03 CN CN201721466175.7U patent/CN207517461U/en active Active
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